中国移动公司 技术类招聘笔试 试题汇总 1、 In BSS, the relay function relays ____ C __between Um and Gb interfaces. A、SNDCP PDU B、GTP PDU C、LLC PDU D、PDP PDU 2、 In SGSN, the relay function relays ___D___between Um and Gb interfaces. A、SNDCP PDU B、GTP PDU C、L LC PDU D 3
The MOC3041, MOC3042 and MOC3043 devices consist of gallium arsenide infrared emitting diodes optically coupled to a monolithic silicon detector performing the function of a Zero Voltage Crossing bilateral triac driver. They are designed for use wit
Learn how to write your own program, debug it, and use it to start the microcontroller. We have provided plenty of practical examples with necessary connection schematics: temperature sensors, AD and DA converters, LCD and LED displays, relays, comm
The L298 is an integratedmonolithic circuit in a 15- lead Multiwatt and PowerSO20 packages. It is a high voltage, high current dual full-bridge driver designedto acceptstandardTTLlogic levels anddrive inductive loads such as relays, solenoids, DC an
8-BIT SERIAL-INPUT, DMOS POWER DRIVER The A6B595KA and A6B595KLW combine an 8-bit CMOS shift register and accompanying data latches, control circuitry, and DMOS power driver outputs. Power driver applications include relays, solenoids, and other med
BAT16 16A Available either in through-hole or surface-mount packages, the BTA/BTB16 and T16 triac series is suitable for general purpose AC switching. They can be used as an ON/OFF function in applications such as static relays, heating regulation,
Preface xxi 1 Number Systems 1 1.1 Analogue Versus Digital 1 1.2 Introduction to Number Systems 2 1.3 Decimal Number System 2 1.4 Binary Number System 3 1.4.1 Advantages 3 1.5 Octal Number System 4 1.6 Hexadecimal Number System 4 1.7 Number Systems
固态继电器(Solid State Relays,缩写SSR)是一种无触点电子开关，由分立元器件、膜固定电阻网络和芯片，采用混合工艺组装来实现控制回路(输入电路)与负载回路(输出电路)的电隔离及信号耦合，由固态器件实现负载的通断切换功能，内部无任何可动部件。尽管市场上的固态继电器型号规格繁多，但它们的工作原理基本上是相似的。主要由输入(控制)电路，驱动电路和输出(负载)电路三部分组成。
Deploying relays and/or base stations is a major meansofextendingthecoverageofawirelessnetwork.Thispaper presents models, analytical results, and algorithms to answer two related questions: The first is where to deploy relays in order to extend the re
